Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec3eccbeaa8e3391…

MALICIOUS

PDF

32.7 KB Created: 2021-06-18 22:04:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: ad019fe07c8123cf707a6f0190a4f43c SHA-1: 658f7b175cd4985e093a5dce82e0d86898c978c4 SHA-256: ec3eccbeaa8e3391ce6e4fc43a8a89ead3fbb0f32935fb08d31353c7b96b7b4a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document uses a game hack lure to entice users to click on external links. The primary link, http://netcdn.co/app/431946152/how-to-get-a-free-dominus-on-roblox-game-hack, is identified as a redirector for game hacks. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a malicious intent to redirect users to potentially harmful websites for further exploitation or scams.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/431946152/how-to-get-a-free-dominus-on-roblox-game-hack PDF link annotation
    • http://ansacare.com/images/coinmaster-hack_GM406889139.pdfIn PDF document text
    • http://ansacare.com/images/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/ro-ghoul-script_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/hack-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://ansacare.com/images/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • http://ansacare.com/images/coin-master-free-spin-and-coin-link-today_GM406889139.pdfIn PDF document text
    • http://ansacare.com/images/roblox-moderators_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/corn-master_GM406889139.pdfIn PDF document text
    • http://ansacare.com/images/roblox-free-login_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/hacks-para-roblox-online_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://ansacare.com/images/money-hack-roblox-2021-february_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/cheats-coin-master-free_GM406889139.pdfIn PDF document text
    • http://ansacare.com/images/mcpe-master-hack-coin-apk_GM406889139.pdfIn PDF document text
    • http://ansacare.com/images/coin-master-free-spins-facebook_GM406889139.pdfIn PDF document text
    • http://ansacare.com/images/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/roblox-free-brick-pants_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000028e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x28E6 22120 bytes
SHA-256: 391f32a0c6dabbe34f728a12f86b4cd8df59d8d21f3147fab374ca6a47b3aee5
font_01_sfnt_off00005a12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A12 19420 bytes
SHA-256: 49bc3fdee76f8506b7460c16245bb025d3432415e3e3e2b04d9b116b6ae7ce20